218365825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2861}}^1$

素因数の和:2985

約数の個数: 24

約数和(自身を含む): 281071296

約数和(自身を除く): 62705471

約数列:

[1, 5, 25, 43, 71, 215, 355, 1075, 1775, 2861, 3053, 14305, 15265, 71525, 76325, 123023, 203131, 615115, 1015655, 3075575, 5078275, 8734633, 43673165, 218365825]

約数ペア:

[(1, 218365825), (5, 43673165), (25, 8734633), (43, 5078275), (71, 3075575), (215, 1015655), (355, 615115), (1075, 203131), (1775, 123023), (2861, 76325), (3053, 71525), (14305, 15265)]